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The IMAP client sent LOGIN/AUTHENTICATE immediately after TCP connect without waiting for the server's `* OK` greeting. This broke connections through local OAuth proxies (e.g. email-oauth2-proxy) where the proxy needs time to establish its upstream TLS session before it can issue the greeting. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Closes #218
Summary
WaitGreeting()call after IMAP dial and beforeLogin/Authenticate, per RFC 3501 client requirementsunexpected EOFwhen connecting through local OAuth proxies (e.g. email-oauth2-proxy) that need time to establish the upstream TLS session before issuing the greeting🤖 Generated with Claude Code